Remember preview length
It would be nice if DevedeNG would remember the preview length that I used the last time I clicked "preview".
It's always set to 60 seconds.
My use case: I want to have a quick look trying out different aspect ratios. To keep conversion time low, I set it to 10 seconds and preview the video. Then I change one of the aspect ratio settings and preview again. I have to set the time again from 60 to 10 seconds.
(Happens with DevedeNg 4.15.0 on Ubuntu 20.04)